fifty stamps each. Quantities issued totaled more than 120 million. Project Mercury Issue of 1962 Project Mercury was the first human spaceflight program of the United States. It ran from 1959 through 1963 with the goal of putting a human in orbit around the Earth. The Mercury-Atlas 6 flight on February 20, 1962, was the first Mercury flight to achieve this goal. The Post Office Department honored this first orbital flight of a United States astronaut on February 20, 1962, when it released the Project Mercury commemorative stamp, placed on sale throughout the country at the exact hour Colonel John Glenn's historic flight officially had returned to Earth safely. The 4-cent stamp features an image of the Mercury Friendship 7 capsule circling the Earth, against a field of stars. The spacecraft is now housed at the National Air and Space Museum, Washington, DC. Because the event was deemed so popular the number of quantities issued totaled more than 289 million, more than twice the average amount of quantities issued for commemorative postage issues of that time. This issue has somewhat of an unusual history. It was one of the first issues printed on the new Giori Press (named after its inventor, Gualtiero Giori). It employed a series of specially cut rubber rollers that applied two or three different colored inks on the same printing plate. As the new press was being used to print the Project Mercury stamp before the mission took place and in case the mission failed or was canceled, the Bureau of Engraving and Printing kept word about the new press and the stamp issue's production a secret. To further assure that the project be kept secret the designer of this issue, Charles R. Chickering, worked from his home and simply claimed that he was away on vacation. The stamps, waiting at post offices around the U.S., were sealed and marked "Top Secret". Only after Glenn's trip were the postmasters allowed to open the package and see what was inside. Robert H. Goddard Issue of 1964 Robert Hutchings Goddard (October 5, 1882 – August 10, 1945) is widely recognized as the "father of rocketry," as he pioneered the modern propulsion rocket based on his knowledge of math, engineering and physics. His accomplishments included creating the first rocket propelled using liquid fuel and developing the first rocket to use internal vanes for guidance. He launched his first rocket